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Finding the Fourth Proportional to 7,277.91, 10,918.88 and 2,898.44

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Solution

The fourth proportional to 7,277.91, 10,918.88 and 2,898.44 is: 4,348.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,277.91 : 10,918.88 = 2,898.44 : x
  2. Step 2: Convert to fraction form
    7,277.91/10,918.88 = 2,898.44/x
  3. Step 3: Cross multiply
    7,277.91x = 10,918.88 × 2,898.44
  4. Step 4: Simplify right side
    7,277.91x = 31,647,718.55
  5. Step 5: Solve for x
    x = 31,647,718.55/7,277.91
  6. Step 6: Final answer
    x = 4,348.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.